Fox Attack! Please Help Me!

So, this morning I went out to feed and water my chickens, and I see a fox holding one of my black australorps by its neck! I chased it and the fox let go. The chicken was missing feathers but there were no gashes. The only weird thing is that its voice croaks. Like when your drinking with a straw and you finish the drink. It coughs every few minutes. I had to leave and I won't be home until 3. Will it be OK?

keep your chickens inside a predator proof run and coop now because since he/she has discovered that you have a fast food restaurant it will come back because it has hungry kits. Our neighbor lost over 20 chickens last year to fox and coyotes feeding babies

I hope you put those birds away in a safe place before you left, because as sure as the sun rises, that fox WILL be back. I was practically wiped out by a fox a few yrs ago in a couple of hours. Electrified poultry net was the answer for me.